Congratulations on launching your website! That's a big accomplishment.
You've gotten lots of good advice here already. It can be difficult to think about your business from the perspective of your client, but I think if you take the time to do it, you'll end up with a website that will be much more effective for you.
How will their lives be better for hiring you? Why should they choose you instead of another VA?
I sometimes have a hard time with this exercise, because I'm not a salesperson by nature, so what I do is I think of some products or services or websites that have convinced me to become a client. Then I go look at what they do and try to understand it, because obviously they were successful! I've learned a lot that way.
Good luck!